Genetic evaluation of dual purpose crossbred livestock in Venezuela
In the American tropics, bovine herds are mostly made up of animals produced by crossbreeding between bullfighting breeds (Bos taurus) and zebuines (Bos indicus), obeying an environmental type limitation and as a response from ranchers to obtain more productive animals and profitable in these environments. The use of animals of exotic breeds, such as the Holstein and Swiss Brown and Zebuines such as the Brahman, mainly, has allowed achieving 1) better-adapted animals through alternate crossings together with selection strategies, and 2) that exceed their production to as management progresses. Currently, dual-purpose livestock makes up more than 60% of the national herd and about 95% of heads in the western region of the country, 45% of the meat nationwide. In the Lake Maracaibo basin, dual-purpose livestock has been developed, supported mainly by crossbreeding between breeds, originating what is known as "mosaico perijanero" cattle, the result of crossbreeding programs mainly of the alternate type between Bos taurus and Bos indicus, obeying breeder and agro-technical strategies in order to obtain an animal adaptable to particular environmental conditions. Commonly, dual-purpose livestock in Venezuela is associated with a type of bovine animal, from which a double production is obtained: milk and meat. The need to establish genetic improvement objectives must necessarily be associated with long-term projection. There are enough additive differences to respond to selection at any stage of animal growth in these populations, as well as on dairy production in dual-purpose crossbred livestock.
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | spa |
| Published: |
Asociacion Latinoamericana de Produccion Animal
2020
|
| Online Access: | https://ojs.alpa.uy/index.php/ojs_files/article/view/2746 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | In the American tropics, bovine herds are mostly made up of animals produced by crossbreeding between bullfighting breeds (Bos taurus) and zebuines (Bos indicus), obeying an environmental type limitation and as a response from ranchers to obtain more productive animals and profitable in these environments. The use of animals of exotic breeds, such as the Holstein and Swiss Brown and Zebuines such as the Brahman, mainly, has allowed achieving 1) better-adapted animals through alternate crossings together with selection strategies, and 2) that exceed their production to as management progresses. Currently, dual-purpose livestock makes up more than 60% of the national herd and about 95% of heads in the western region of the country, 45% of the meat nationwide. In the Lake Maracaibo basin, dual-purpose livestock has been developed, supported mainly by crossbreeding between breeds, originating what is known as "mosaico perijanero" cattle, the result of crossbreeding programs mainly of the alternate type between Bos taurus and Bos indicus, obeying breeder and agro-technical strategies in order to obtain an animal adaptable to particular environmental conditions. Commonly, dual-purpose livestock in Venezuela is associated with a type of bovine animal, from which a double production is obtained: milk and meat. The need to establish genetic improvement objectives must necessarily be associated with long-term projection. There are enough additive differences to respond to selection at any stage of animal growth in these populations, as well as on dairy production in dual-purpose crossbred livestock. |
|---|